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Finding Balance: Measure Cure & Blowing Reactions Using an RPA 

Whether you are extruding or injection molding, the production of foaming or blowing compounds can be a tricky business. An optimal test for the proper blow-cure balance of a sponge rubber compound must measure both reactions and viscosity precisely.

Alpha’s Premier Rubber Process Analyzer (RPA) has been readily accepted by the rubber industry for routine testing of rubber compounds. By adding a standard torque and pressure 2-in-1 transducer on the upper die, you are able to measure the torque as well as the cavity pressure simultaneously.

In this post, we’ll show you how to measure cure & blowing reactions.